Unreliable service

Absolutely poor service, i haven't received my order. My driver was at my complex at 09:00 today (Xolani or Xabiso is his name). he then refused to enter the complex and decided to do his other deliveries. whenever i call him he was rude and irritated till he started declining my calls. Then i escalated via calls to the PTA depot, they didn't help aswell, instead they ignored my calls after i called them many times. As is it stands, i have no idea what to do. my delivery is worth over 3.5k.